1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++98, c++03, c++11 10 11 // <string> 12 13 // iterator begin(); 14 // iterator end(); 15 // const_iterator begin() const; 16 // const_iterator end() const; 17 // const_iterator cbegin() const; 18 // const_iterator cend() const; 19 20 #include <string> 21 #include <cassert> 22 23 int main() 24 { 25 { // N3644 testing 26 typedef std::string C; 27 C::iterator ii1{}, ii2{}; 28 C::iterator ii4 = ii1; 29 C::const_iterator cii{}; 30 assert ( ii1 == ii2 ); 31 assert ( ii1 == ii4 ); 32 assert ( ii1 == cii ); 33 assert ( !(ii1 != ii2 )); 34 assert ( !(ii1 != cii )); 35 } 36 37 { // N3644 testing 38 typedef std::wstring C; 39 C::iterator ii1{}, ii2{}; 40 C::iterator ii4 = ii1; 41 C::const_iterator cii{}; 42 assert ( ii1 == ii2 ); 43 assert ( ii1 == ii4 ); 44 assert ( ii1 == cii ); 45 assert ( !(ii1 != ii2 )); 46 assert ( !(ii1 != cii )); 47 } 48 49 #if defined(__cpp_lib_char8_t) && __cpp_lib_char8_t >= 201811L 50 { 51 typedef std::u8string C; 52 C::iterator ii1{}, ii2{}; 53 C::iterator ii4 = ii1; 54 C::const_iterator cii{}; 55 assert ( ii1 == ii2 ); 56 assert ( ii1 == ii4 ); 57 assert ( ii1 == cii ); 58 assert ( !(ii1 != ii2 )); 59 assert ( !(ii1 != cii )); 60 } 61 #endif 62 63 { // N3644 testing 64 typedef std::u16string C; 65 C::iterator ii1{}, ii2{}; 66 C::iterator ii4 = ii1; 67 C::const_iterator cii{}; 68 assert ( ii1 == ii2 ); 69 assert ( ii1 == ii4 ); 70 assert ( ii1 == cii ); 71 assert ( !(ii1 != ii2 )); 72 assert ( !(ii1 != cii )); 73 } 74 75 { // N3644 testing 76 typedef std::u32string C; 77 C::iterator ii1{}, ii2{}; 78 C::iterator ii4 = ii1; 79 C::const_iterator cii{}; 80 assert ( ii1 == ii2 ); 81 assert ( ii1 == ii4 ); 82 assert ( ii1 == cii ); 83 assert ( !(ii1 != ii2 )); 84 assert ( !(ii1 != cii )); 85 } 86 } 87